TCC76x
Specification Rev. 0.07
February 23, 2005
32-bit RISC Microprocessor for Digital Media Player
GPIO PORT
Preliminary
7-3
GPIO_A Function Select Register (GSEL_A)
0x80000308
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
PD[15:0]
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
GS2[2:0]
-
GS1[2:0]
-
GS0[2:0]
If a bit is set to 1, the corresponding GPIO_A pin is used by the other dedicated
peripherals. The dedicated peripherals for these GPIO_A pins are LCD controller, and
three of four GSIO ports.
PD[15:0]
GPIO_A[31:16] Function Select
0
GPIO_A[31:16] pin is working as Normal GPIO Function
if bit n = 1
GPIO_A[n+16] : Pixel Data[n] of LCD block
*These fields are valid only in TCC761.
GSn[2:0] GPIO_A[10:8], GPIO_A[6:4], GPIO_A[2:0] Function
0
GPIO_A[10:8], GPIO_A[6:4], GPIO_A[2:0] pin is working as Normal
GPIO Function
GS2[2] = 1
GS2[1] = 1
GS2[0] = 1
GPIO_A[10] : FRM signal of GSIO2 block
GPIO_A[ 9] : SCK signal of GSIO2 block
GPIO_A[ 8] : SDO signal of GSIO2 block
GS1[2] = 1
GS1[1] = 1
GS1[0] = 1
GPIO_A[ 6] : FRM signal of GSIO1 block
GPIO_A[ 5] : SCK signal of GSIO1 block
GPIO_A[ 4] : SDO signal of GSIO1 block
GS0[2] = 1
GS0[1] = 1
GS0[0] = 1
GPIO_A[ 2] : FRM signal of GSIO0 block
GPIO_A[ 1] : SCK signal of GSIO0 block
GPIO_A[ 0] : SDO signal of GSIO0 block
SDI signal for GSIO2, GSIO1, GSIO0 block is always fed through GSIO_A[11],
GSIO_A[7], GSIO_A[3] pin regardless of these GS[2:0] bit. But to use GSIO, these pins
must be set to input mode ahead.
GPIO_A Test Select Register (GTSEL_A)
0x8000030C
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
TC2
EX2CLK
TC5 TC1
0
TC4 TC0
0
TC3
If a bit is set to 1, and the corresponding bit of GSEL_A is 0, GPIO_A pin is used by the
other dedicated peripherals. It is used to set the output of timer
TC5 ~ TC0
GPIO_A[11,8,7,4,3,0] Function Select
0
GPIO_A[11,8,7,4,3,0] pin is working as Normal GPIO Function
1
GPIO_A[11,8,7,4,3,0] is the output of six timer/counters
*) These fields are valid only if the corresponding bit of GSEL_A is set to 0
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